11 36 720 Removing And Installing/Replacing Both Solenoid Valves On Right Side (N62)

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

(cylinder bank 1 to 4)

Necessary preliminary tasks:

Read out fault memory of control unit of Digital Motor Electronics (DME).
Switch off ignition.
Remove acoustic cover.
Remove design cover.
Remove upper section of intake filter housing with air-mass flow sensor and intake hose.

NOTE: Solenoid valve (1) controls adjusting unit on inlet side.

Solenoid valve (2) controls adjusting unit on exhaust side.

Unlock plug of solenoid valves (1 and 2) and disconnect.

Release screws and remove holder (3).

Pull out solenoid valves (1 and 2).

Fig 1: Pulling Out Solenoid Valves (1 And 2)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check holder (3) for deformation; replace if necessary.

Installation:

Clean sealing faces (1) on cylinder head.

Fig 2: Cleaning Sealing Faces On Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace O-rings (1 and 2) on solenoid valve (3) and lubricate.

Fig 3: Replacing O-Rings On Solenoid Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Press in solenoid valves as far as they will go.

Fig 4: Pressing In Solenoid Valves

Courtesy of BMW OF NORTH AMERICA, INC.

Make sure holders are in correct installation positions.

Install and tighten down screws.

Now clear the fault memory.